diff --git a/insns/InsnJalr.py b/insns/InsnJalr.py
index 71b1073..e2d76a6 100644
--- a/insns/InsnJalr.py
+++ b/insns/InsnJalr.py
@@ -5,6 +5,9 @@ JALR instruction
 """
 
 class InsnJalr(InsnRV32IIType):
+    def __init__(self, RISCV_FORMAL_ILEN, RISCV_FORMAL_XLEN, RISCV_FORMAL_CSR_MISA, RISCV_FORMAL_COMPRESSED):
+        super().__init__(RISCV_FORMAL_ILEN, RISCV_FORMAL_XLEN, RISCV_FORMAL_CSR_MISA)
+        self.RISCV_FORMAL_COMPRESSED = RISCV_FORMAL_COMPRESSED
     def elaborate(self, platform):
         m = super().elaborate(platform)